Original Research

Tentative age-related norms for high frequency electric bone conduction audiometry

G. R. Voogt, H. S. Schoeman
South African Journal of Communication Disorders | Vol 42, No 1 | a247 | DOI: https://doi.org/10.4102/sajcd.v42i1.247 | © 2019 G. R. Voogt, H. S. Schoeman | This work is licensed under CC Attribution 4.0
Submitted: 14 October 2016 | Published: 31 December 1995

About the author(s)

G. R. Voogt, Department of Otorhinolaryngology, Medical University of Southern Africa, South Africa
H. S. Schoeman, Department of Mathematics and Statistics, Medical University of Southern Africa, South Africa

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From 172 male and female patients aged 7-71 years old and admitted in one month to a tuberculosis hospital, 150 had their highest audible electric bone conduction (EBC) frequency evaluated, prior to the commencement of any medical treatment. Various problems in establishing high frequency norms are discussed and from the results of this study tentative age-related highest frequency EBC norms are suggested. Possible clinical applications of evaluating the highest audible C frequency is suggested.


highest audible frequency; electric bone conduction; age; sex; norms


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